Ore-crusher



(No Model.) @neem-sheen 1..L

A. P. GRANG'ER.'

ORB GRUSHBR.

No1-.376,878 LPatented Jafn. 24, 1888.

N. mais. mmulmgnyner. wmlmm D. c.

(No Model.) l

A. P. GRA1\TGERA ORBORUSHBR'. n

No. 376,878. Patented Jan. 24, 1888.

y 206.21507? Y .Ji-Zuma l? @anger .3 sheetsgsheet 2.

(No-Model.) 8 v v 3 Sheets-Sheet 3.

l A. P. GRNGER.

ORE RUSHBR.

' Patented Jam 24, 1888.

No. 376,878f

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11u/@mini H" UNITED STATES ALvAN P. GRANGER, or DENVER, COLORADO.

ORE-CRUSHER.

SPECIFICATION forming part of Letters Patent No. 376,878. dated January'24, A1888.

'Application filed J une 21, 1886. Renewed November 5, 1887. Serial No.254,442. y (No model.)

To all whom i may concern.-k

Beitknown that I, ALvAN P. GRANGER, of 1 Denver, in the county ofArapahoeand State of Colorado, have invented certain new and use-- fulImprovements Vin Ore-Crushers; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of reference'marked thereon, which forma part of this specication.

This invention relates toanovel forni of machine for stamping ordisintegrating ores,

, which comprises a .revolving wheel 'mounted The objectof thisinvention is to improve the construction of, machines of the characterabove described in several particulars, as will hereinafter appear; andit consisisin the matters hereinafter described, and pointed out in theappended claims.

In the accompanying drawings, illustrating my invention., Figure l is aside elevation of a machine embodying one desirable form of myinvention. Fig. 2 Ais acentral vertical section taken through theoperative parts of the ma! chine upon linex x of Fig. 3. Fig. 3 is acentral vertical section takenV upon line xx of Fig. 2, but showing theseveral shafts and pulleys in full outline. Fig. 4 is a detail sectionalview taken'upon liney yof Fig. 2. Fig.

5 is a detail sectional plan view taken uponv linea: xof Fig. 1`.

Fig. 6 is a perspective View of oneof the flanged sleeves shown in Figs.2 and 3 as surrounding the" shaft by which the wheel is supported. l

As shown in the said drawings, A represents a heavy revolving wheel orcasting, de`` nominated herein and in said prior application amortar-wheeL7 and- B a crushing -roller which is located over the wheelAand is movably sustained upon the machine-frame in such manner as torest or ride upon the periphery ofthe said wheel. rljhe wheel is mountedupon a horizontal shaft, A', which extends at` its ends beyond the sidesof the said wheel to form y PATENT Ormes. l i (i trunnions,which havebearings intheframe C of the machine, and said wheel isfprovided A uponits periphery with a series of transverse depressions and intermediateprominences, giving an undulating fornito the peripheral Surfacethereof.

A2 A2 are flanges extending outwardly'jfrom,` n y n the undulatingperipheral surface of the wheel .at each side of the latter, so as toform a trough v or channel of varying depth extending around thewheeljsaid flanges, as herein shown, being formed by a seriesv ofplates, A3 A3, applied to the ends of thewheel.

The roller B is made of suitable lengthto freely enter between theiianges A2 A2, and is constructed to rise and fall freely and to roll Opupon the yundulating surface of the niortarwheel as the latter isrotated, so as to crhsh the materialv placed in the hollows ordepressions .of the wheel, inthe manner fully setv forth in thepriorapplication hereinbefore re-y ferred to. The said roller B maybesustained upon the machine-'frame by any suitable devices adapted topermita free movement of 'said roller towardk and from the mortar-wheel,

the devices herein shown for this purpos'e'conk sisting of two arms orradius-bars, Bwhich arepivoted at one of ltheir extremities to arms G ofthe frame C, and are providedwith bearings for the trunnions B B of theroller at 9C VD*,/mounted in the' top of the frameabove the'f saidmortar-wheel. Asfar as the Operation of the belt elevator alone isconcerned, the material may be fed to the lower endof the said recanexit-spout, E', at its lowerend and with screens FF above its bottom,said chute being constructed toV receive the crushed material from themortar-wheel, which materialissepat rated by the screens, so as to allowthe discharge of the pulverized portion thereof through the exit-spoutE', while the larger parts, or those not suiiciently reduced, aredischarged from the lower end of the screens to the elevator to beagain' subjected to the action of the crushing devices. The said chuteis also adapted to receive the material fed to the machine,whichmaterial passes over the screens, so as to cause the separation of anypulverized or fine particles therefrom,while the coarser parts aredelivered to the elevator with the uncrushed material which haspreviously passed th rough the crushing devices,the chute beingdesirably widened or enlarged at its upper end to form a hopper, E2, forthe reception of the material delivered to the chute. l f c Thebeltpulleys D3 D2 are so arranged with relation to the mortar-wheel thatthe elevatorbelt D is drawn over or rests against the periphery of saidwheel at one 'side of the latter, the buckets D2 upon the beltbeing'spaced at such distances apart that each bucket will enter one ofthe hollows or depressions of the wheel as the belt and wheel are moved.As a preferred means of actuating the belt, the latter is providedbetween the buckets with transverse bars d, which project at their endsbeyond the side margins of the belt, and are constructed to engage notches or recesses a, form ed in the fianges A2 A2 of the mortar-wheel, sothat when the mortar-wheel is rotated the belt will be carried or movedwith it, thus rendering any separate actuating devices for the beltunnecessary.v The cross-bars d and the notches a are, furthermore, sodisposed relatively to the depressions of the mortar-wheel and thebuckets D2 upon the belt that the buckets come opposite and rest withinthe said depressions as the belt passes over the said mortarwheel, thesaid buckets being made of such size that their outer edges rest or bearagainst the surface of the said depressions. The buckets D2 have fiat ornearly flat bottoms d', arranged approximately at right angles with thesurface of the belt D', and are provided with side pieces, d2, extendingfrom the edges of the bottoms d to the side margins of the belt. Whenthe belt is made of leather, rubber, or other flexible material, thebuckets are made with stiii` back pieces or walls, d3, curved tocorrespond with the curvature of the supporting-pulleys D3 D.

The buckets constructed as above described are obviously adapted toreceive and hold the material when upon the upwardly-moving part of thebelt D below the mortar-wheel only, this part of the belt being inclinedin such manner that the bottoms d of the buckets slope inwardly ortoward the belt, so as to form with the belt a V-shaped receptacle forthe material. In the upwardly-moving part of the belt above themortar-wheel, which is inclined forwardly so as to overhang the wheel,the buckets are obviously held in position to discharge their contentsupon the wheel. The

buckets are made of such width or size, as

above stated, that their outer edges. come in contact with or pressagainst the face of the mortar-wheel, and it follows that as each bucketis carried upwardly with its load and comes in contact with the face ofthe mortar-wheel the material in the buckets will be heldin the spacebetween the belt and wheelabove the bucketbottom until the bucket leavesthe wheel, when,by reason of the inclined position of thebucket-bottom,the material will slide from the bucket and fall upon themortarwheel. Inasmuch as each bucket enters and remains in one of thedepressions in the wheel the material will obviously be thrown or deposited in the said depressions by the several buckets. The free orouter edges of the buckets are shown in the drawings as inclineddownward by their contact with the mortarwheel, this position of thebuckets obviously favoring the prompt discharge of the material when thebuckets reach the top of the wheel.

.In practice, however, the buckets may remain at right angles with thebelt, or may be more or less inclined than shown, according to the formof the mortar-wheel or the relative sizes of the other parts.

To insure that the belt D and buckets shall remain inproper positionlaterally with relation to the mortar-wheel, the notches a a ofy thewheel-Hanges A2 A2 are formed in the inner faces of the flanges, so asto form end walls or stops, a, engaging the end faces of the crossbars dupon the belt, the inner surfaces of said end walls or stops beingpreferably made outwardly inclined or aring, as shown more clearly inFig. 4, so as to direct or guide the said bars into the proper positionas they enter the notches or recesses. In the particular constructionshown the notches or recesses a are formed partiallyin the thickness ofthe flanges A2 A2 and partially by ribs a2 a2, cast upon the inner facesof the said flanges; but these parts may be made otherwise in practice,as may be found convenient or desir able.

The parts of the inner faces of the iianges A2 A2 between the notches aa are preferably beveled, as indicated at a2, to guide the roller B toplace in casesaid rollcrislifted upwardly and sidewise by exceptionallylarge or hard lumps of the material being crushed, the ends of the ribsa2 which move toward the said roller being beveled or inclined, asindicated at a2, to prevent the roller striking and catch` ing upon theends of the said ribs under similar circumstances.

The downwardly-n1oving part of the elevator-belt, made as abovedescribed, may be held free from the upwardly-moving portion thereof byany suitably-arranged guide or guides. As herein shown,a stationarycurved guide, G, is employed for this purpose, said guide consisting ofa curved plate extending between and attached atits edges to theopposite side pieces of the frame C.

I have herein shown at the lower end of the elevator a casing or shoe,H, surrounding the ICO pulley Da-and provided with a cylindric lowerwall, h, curved concentrically with the axis of said pulley and arrangedfor the passage of the outer edges of the buckets l)2 in close proximityto it in their movement around the pulley, so that said buckets `willscrape or scoop up material delivered to the casing. In the particular'construction of the feedingdevices shown,.in which the material isdelivered to the buckets from the lower ends of the screens F F as saidbuckets are moving up-A wardly from the pulley D3, the casing H servesto catch any material that may fail to enter or fall from theupwardlyfmoving buckets, so that such material will be taken up by suc-Aceeding buckets. The material to be operated upon may, however, in somecases be fed directly to the shoe or casing H with the same generalresult, as far as the operation of the elevator is concerned, as whenthe construction shown'is used. A construction in which the material isallowed to fall into ounpon the upwardly-moving buckets is preferred,however, inasmuch as a larger quantity of material may be thus depositedupon buckets of the form shown and described than willusually be scoopedup by such buckets'in passing through the shoe.

The screen-chute E consists, as shown, of a bottom, E, made of sheetmetal or wood, and* side boards, E3, to which the said bottom and thescreens F and-F are attached. Said chute is pivoted at its upper end toarms E5, bolted to the frame C by means of pivotbolts e, and rests atits lower ends upon revolving stepped cams I, mounted upon a transverseshaft, J, and engaging, as shown, projecting parts e' e of the sideboards, E3, said cams operating to shake orjar the chute and screens, soas to facilitate the passage of the material through and over saidparts.

In the particular construction illustrated the shaft J is provided atone end outside of the frame with a pinion, J, intermeshing with aspur-wheel, A, upon the mortar-'wheelshaft A, .and at its opposite endwith a belt-pulley, whereby the said shaft is drivenand the sev eralparts of the machine actuated. In the use of other driving devices,however, the

cams I'inay be mounted upon any suitablylocated shaft; An importantadvantage lis gained by the use ofa pinion intel-meshing with aspur-wheel upon the mortar-wheel shaft as a means of actuating themortar-wheel, inasmuch las a steady motion is thereby given-to saidwheel, and the latter will be unaffected by the action of the heavyroller B in rolling upon the' undulating surface thereof.

To insure delivery' of the material passing over the screens to theelevato r-buckets, the lower ends of the screens are made to overhangthe lower belt-pulley, D3, the rear'wall, e", of the spout E beinginclined rearwardly and upwardlyto the rear edges of the screens, asshown, so as to receive and discharge all ofthe material passing throughthe screens. I have shown in extended upwardly' and flared attheir-upper ends, so 'as to dedect inwardly to the elevatorbuckets allof` the material falling from the lower ends of the screens. I haveshown in the drawings two screens, F and F, for the purpose of moreperfectly separating the finer and y coarser particles of the materialbeing operated upon; but it will Iof course be understood that preferred0r desired. y

E6, Figs.v 2 and 5, is an inclined deliector placedfin the hopper E2 forthe purpose of throwing toward or delivering to the -upper parts of thescreens F Ffthe material delivered one or more than one screen may beuscd, as

to the said hopper E2. kThe said detlector is4v of outwardly-extendingradial ribs, Z,fherei11 shown as cast on sleeves L, keyed tothe said f ishaft A. In the annular space thus formed between the shaft and thewheel'I place a cushion or filling, M, of rubber or other elastic, oryielding material, such cushion serving to relieve the frame of themachineand coni nected parts from the shocks caused bythe vactionthereonvof the'crushingmoller B or IOO other crushing or stamping deviceemployed. f

The ribs Z are made to extend into the spaces between the ribsa, so thatthe'wvheell is prevented from turning upon 'the shaft by theA presenceof the filling M between the said ribs. The sleevesL are, las shown andpreferably constructed, provided withoutwardlyextending annular iiangesL', for the purpose of covering and holding thecu'shion or lling M frome'ndwise displacement.

-An important and general advantage of the construction described,wherein the elevatorbelt is sustained with relation to the undulat-v ingperiphery of the wheel by the engagement of the cross-bars d with theWheel-Bauges, the

Itor

buckets with the depressions, and the belt'it,

self with the prominences of the wheel, as."

shown more Iclearly in Fig. 2, is that the part of the belt restingagainst the mortar-wheelis thereby held in a curve practically circularandconcentric with the axis of the wheel, so that the said belt iscausedv to runsmoothly and evenly over the mortar-wheel.

It is to b e understood that Iconsider the p .belt elevator providedwith buckets and operating in connection with vthe mortar-,wheel in themanner described to be broadly new; and I do not wish, therefore, to berestricted` toa construction in which the belt is actuated by engagementwith the mortarzwheel, as shown, l

or to the particulardetails of lconstructionA shown* in the belt itselfor parts connected f therewith'. yA construction inwhich the belt l isdriven from the mortar-wheel has, however, important advantages in pointof simplicity of construction andV certainty of operation, and a deviceembracing this feature is therefore made the subject of specic claimsherein, as are also certain other details of constru ction hereinillustrated in connection with the said elevator.

A cushion interposed between the mortarwheel and the machine-frame toprevent the transmission of shock or jar to the latter is also novel,and is herein claimed without restriction to the particular location andarrangement of the cushion herein shown.

It is to be understood, furthermore, that stamping or crushing devicesother than the crushing or stamping roller shown may be employed tooperate upon material deposited in the depressions of the mortar-wheel,and my invention, as herein claimed, is not therefore limited toaconstruction embracing said crushing-roller.

I claim as my invention- 1. The combination, with a rotating wheelprovided with a series of peripheral depressions and a crushing deviceacting upon material in the depressions, of an elevating devicecomprising a' belt provided with buckets, and supporting-pulleys for thebelt, constructed to sustain the latter with its upwardly-moving part incontact with the said wheel, substantially as described.

2. The combination, with a revolving wheel provided with a series ofperipheral depressions and acrushing-stamp, of an elevating devicecomprising an endless belt provided with buckets arranged at the samedistance apart as the said depressions, and supporting-pulleys forthebelt-,constructed to sustain the latter with its upwardly-moving part incontact with the periphery of the wheel, said belt and the periphery ofthe wheel being driven at the same speed, whereby the buckets willseverally enter the depressions in their upward movement past the wheel,substantially as described. Y

3. The combination, with a revolving wheel provided with a series ofperipheral depressions and a crushing-stamp, of an elevating devicecomprising an endless belt, supportingpulleys for the belt located inposition to sustain the belt with its upwardly-moving part in contactwith the peripheral surface of' the wheel, and buckets upon the beltprovided with ilat bottoms arranged approximately at right angles to thesurface ofthe belt, said buckets being constructed to rest in contactwith the peripheral surface of the wheel, whereby the material isretained in the buckets while the latter are moving upwardly past theWheel, substantially as described.

4. The combination, with a revolving wheel provided with a series ofperipheral depressions and a crushing stamp, of an elevating devicecomprising a belt provided with buckets, said belt being engaged withand actuated by the said wheel, substantially as described.

lianges having marginal notches or recesses,

a crushing-stamp, and an elevator comprising an endless belt providedwith cross pieces or bars adapted to engage the not-ches or recesses ofthe iianges, said notches or recesses being provided with inclined outerwalls engaging the end surfaces of said cross pieces or bars,substantially as described.

7. The combination, with a revolving wheel Vprovided with a series ofperipheral depressions and a crushing-stamp, of an elevating devicecomprising a belt provided with a series of buckets, supporting-pulleysfor the belt,sus taining the latter with its upwardly-moving part incontact with the wheel, and a screen chute constructed to receivematerial from the said wheel and deliver the uncrushed parti-I clesthereof t0 the buckets upon the upwardly-moving part of theelevator-belt, substantially as described.

8. The combination, with a revolving Wheel provided with a series ofperipheral depressions and a crushing-stamp, of a screen-chutereceiving'the material from the wheel, said chute being provided with anoutwardly and downwardly inclined detlector directing said materialagainst the upper part of the screen therein, substantially asdescribed.

9. The combination, with a revolving wheel provided with a series ofperipheral depressions,A a crushing-stamp, and a frame supporting thewheel,ot' a cushion interposed between the wheel and the frame,substantially as and for the purpose set forth.

l0. The combination, with a revolving wheel provided with a series ofperipheral depressions, a crushing-stamp, and a frame sustaining thewheel, of a shaft, A', for supporting the wheel, a sleeve, L, attachedto the shaft and provided with radial iianges l, the said wheel beingprovided with a central opening larger than the sleeve and withinwardly-extending tlanges a5, and a cushion inserted in and lling thespace between the said sleeve and wheel, substantially as described.

In testimony that I claim the foregoing as my invention I affix mysignature in presence of two witnesses.

ALVAN P. GRANGER.

Vitnesses:

W'ILLLLM H. SAVAGE, A. E. WARREN.

IOO

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